Police body cameras raise privacy concerns. The indiscriminate release of body camera footage could have a devastating effect on the victims of crime. Those crafting police body camera policy have to effectively balance privacy with the desire to hold police officers accountable for their actions.

Written policies should clearly describe the circumstances in which supervisors will be authorized to review an officer's body-worn camera footage.

Body-worn cameras raise a number of considerations that agencies must take into account as they craft their policies.

--- Function of strong night vision, able to see the facial appearance of humans clearly within 10m in complete darkness. --- Double-filter switcher, no color cast in the daytime, clearer in the nighttime. --- Unable to look up or delete the data of recording files, unless authorized. --- Function of character superimposition, all videos and pictures will be attached with time, device ID, police ID and other information, they are unable to be edited or rearranged, providing more effective legal evidence.